127 lines
3.5 KiB
Go
127 lines
3.5 KiB
Go
package main
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import (
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"encoding/json"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"net/http"
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"github.com/aliyun/alibaba-cloud-sdk-go/services/alidns"
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)
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type Config struct {
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RegionId string `json:"regionId"`
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AccessKeyId string `json:"accessKeyId"`
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AccessSecret string `json:"accessSecret"`
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DomainName string `json:"domainName"`
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}
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type IpJson struct {
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Status string `json:"status"`
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Country string `json:"country"`
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CountryCode string `json:"countryCode"`
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Region string `json:"region"`
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RegionName string `json:"regionName"`
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City string `json:"city"`
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Zip string `json:"zip"`
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Lat float64 `json:"lat"`
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Lon float64 `json:"lon"`
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Timezone string `json:"timezone"`
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Isp string `json:"isp"`
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Org string `json:"org"`
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As string `json:"as"`
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Query string `json:"query"`
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}
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func main() {
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configPath := flag.String("config", "./config.json", "path to config file")
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flag.Parse()
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fmt.Println(*configPath)
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configJson, err := ioutil.ReadFile(*configPath)
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if err != nil {
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log.Fatal(err.Error())
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}
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var config Config
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json.Unmarshal(configJson, &config)
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res, err := http.Get("http://ip-api.com/json/")
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if err != nil {
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log.Fatal(err)
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}
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data, err := ioutil.ReadAll(res.Body)
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res.Body.Close()
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if err != nil {
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log.Fatal(err)
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}
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var ipJson IpJson
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json.Unmarshal(data, &ipJson)
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ip := ipJson.Query
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if ipJson.Status != "success" {
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log.Fatal("get ip failed")
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}
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client, err := alidns.NewClientWithAccessKey(config.RegionId, config.AccessKeyId, config.AccessSecret)
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describeDomainRequest := alidns.CreateDescribeDomainRecordsRequest()
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describeDomainRequest.Scheme = "https"
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describeDomainRequest.DomainName = config.DomainName
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domainRecords, err := client.DescribeDomainRecords(describeDomainRequest)
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if err != nil {
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fmt.Println(err.Error())
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}
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if domainRecords.TotalCount == 0 { // add domain record if none exists
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fmt.Printf("ip is %s, but no domain record found.\n", ip)
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fmt.Printf("---> update %s record to %s ...\n", config.DomainName, ip)
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addDomainRequest := alidns.CreateAddDomainRecordRequest()
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addDomainRequest.Scheme = "https"
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addDomainRequest.DomainName = config.DomainName
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addDomainRequest.RR = "@"
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addDomainRequest.Type = "A"
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addDomainRequest.Value = ip
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response, err := client.AddDomainRecord(addDomainRequest)
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if err != nil {
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fmt.Println(err.Error())
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}
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if response.IsSuccess() {
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fmt.Println("success")
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} else {
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fmt.Printf("failed.\n%s\n", response.GetHttpContentString())
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}
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} else if ip == domainRecords.DomainRecords.Record[0].Value { //ip unchanged
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fmt.Printf("ip unchanged: %s\n", ip)
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} else { //update record[0] by default
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fmt.Printf("ip changed from %s to %s\n", domainRecords.DomainRecords.Record[0].Value, ip)
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fmt.Printf("---> update %s record to %s ...\n", config.DomainName, ip)
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updateDomainRecordRequest := alidns.CreateUpdateDomainRecordRequest()
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updateDomainRecordRequest.Scheme = "https"
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updateDomainRecordRequest.RecordId = domainRecords.DomainRecords.Record[0].RecordId
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updateDomainRecordRequest.RR = "@"
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updateDomainRecordRequest.Type = "A"
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updateDomainRecordRequest.Value = ip
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response, err := client.UpdateDomainRecord(updateDomainRecordRequest)
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if err != nil {
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fmt.Println(err.Error())
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}
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if response.IsSuccess() {
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fmt.Println("success")
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} else {
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fmt.Printf("failed.\n%s\n", response.GetHttpContentString())
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}
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}
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fmt.Println()
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}
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